Home / 18,415.26-25,404.96-12,444.75

Finding the Fourth Proportional to 18,415.26, 25,404.96 and 12,444.75

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Solution

The fourth proportional to 18,415.26, 25,404.96 and 12,444.75 is: 17,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,415.26 : 25,404.96 = 12,444.75 : x
  2. Step 2: Convert to fraction form
    18,415.26/25,404.96 = 12,444.75/x
  3. Step 3: Cross multiply
    18,415.26x = 25,404.96 × 12,444.75
  4. Step 4: Simplify right side
    18,415.26x = 316,158,375.96
  5. Step 5: Solve for x
    x = 316,158,375.96/18,415.26
  6. Step 6: Final answer
    x = 17,168.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.